#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
权限提升场景测试模块
Privilege Escalation Scenario Testing Module

该模块实现：
1. SUID/SGID 二进制文件利用场景
2. Sudo 配置错误利用场景
3. 内核漏洞利用场景
4. 服务劫持场景
5. 环境变量劫持场景
6. 定时任务劫持场景
"""

import os
import sys
import time
import random
import subprocess
from typing import Dict, List, Optional, Any, Tuple
from dataclasses import dataclass
from datetime import datetime

# 添加项目根目录到Python路径
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

@dataclass
class PrivilegeEscalationTest:
    """权限提升测试结果"""
    test_id: str
    test_name: str
    method: str
    success_rate: float
    stealth_rating: float
    risk_level: str
    detection_probability: float
    execution_time: float
    artifacts: List[str]
    recommendations: List[str]

class PrivilegeEscalationScenarios:
    """权限提升场景测试器"""
    
    def __init__(self, target_host: str = "101.37.80.173"):
        self.target_host = target_host
        self.test_results: List[PrivilegeEscalationTest] = []
        
    def test_suid_exploitation(self) -> PrivilegeEscalationTest:
        """测试SUID二进制文件利用"""
        print("🔍 测试SUID二进制文件利用场景...")
        
        # 模拟常见的SUID二进制文件
        suid_binaries = [
            {"name": "find", "path": "/usr/bin/find", "exploitable": True, "difficulty": "easy"},
            {"name": "vim", "path": "/usr/bin/vim", "exploitable": True, "difficulty": "medium"},
            {"name": "nmap", "path": "/usr/bin/nmap", "exploitable": True, "difficulty": "easy"},
            {"name": "python", "path": "/usr/bin/python", "exploitable": True, "difficulty": "easy"},
            {"name": "perl", "path": "/usr/bin/perl", "exploitable": True, "difficulty": "medium"}
        ]
        
        exploitable_count = len([b for b in suid_binaries if b["exploitable"]])
        success_rate = exploitable_count / len(suid_binaries)
        
        # 模拟利用过程
        exploitation_methods = []
        for binary in suid_binaries[:3]:  # 测试前3个
            if binary["exploitable"]:
                method = {
                    "binary": binary["name"],
                    "command": f"{binary['path']} -exec /bin/sh \\;",
                    "success": True,
                    "stealth": random.uniform(0.6, 0.9)
                }
                exploitation_methods.append(method)
                print(f"  ✅ {binary['name']}: 可利用 (难度: {binary['difficulty']})")
            else:
                print(f"  ❌ {binary['name']}: 不可利用")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_suid_001",
            test_name="SUID二进制文件利用测试",
            method="suid_exploitation",
            success_rate=success_rate,
            stealth_rating=0.75,
            risk_level="medium",
            detection_probability=0.3,
            execution_time=random.uniform(2.0, 5.0),
            artifacts=[
                f"发现 {len(suid_binaries)} 个SUID二进制文件",
                f"其中 {exploitable_count} 个可利用",
                "生成利用脚本"
            ],
            recommendations=[
                "优先利用find和nmap等常见工具",
                "避免使用vim等可能留下痕迹的编辑器",
                "利用后立即清理命令历史"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def test_sudo_misconfiguration(self) -> PrivilegeEscalationTest:
        """测试Sudo配置错误利用"""
        print("🔍 测试Sudo配置错误利用场景...")
        
        # 模拟sudo配置检查
        sudo_configs = [
            {"rule": "user ALL=(ALL) NOPASSWD: /bin/cat", "exploitable": True, "method": "file_read"},
            {"rule": "user ALL=(ALL) NOPASSWD: /usr/bin/vim", "exploitable": True, "method": "shell_escape"},
            {"rule": "user ALL=(ALL) NOPASSWD: /bin/cp", "exploitable": True, "method": "file_overwrite"},
            {"rule": "user ALL=(ALL) NOPASSWD: /usr/bin/python", "exploitable": True, "method": "code_execution"}
        ]
        
        exploitable_rules = [rule for rule in sudo_configs if rule["exploitable"]]
        success_rate = len(exploitable_rules) / len(sudo_configs)
        
        # 模拟利用测试
        exploitation_results = []
        for rule in exploitable_rules[:2]:  # 测试前2个
            result = {
                "rule": rule["rule"],
                "method": rule["method"],
                "success": True,
                "stealth": random.uniform(0.5, 0.8),
                "command": self._generate_sudo_exploit_command(rule["method"])
            }
            exploitation_results.append(result)
            print(f"  ✅ 规则: {rule['rule'][:50]}... (方法: {rule['method']})")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_sudo_001",
            test_name="Sudo配置错误利用测试",
            method="sudo_misconfiguration",
            success_rate=success_rate,
            stealth_rating=0.65,
            risk_level="high",
            detection_probability=0.4,
            execution_time=random.uniform(1.0, 3.0),
            artifacts=[
                f"检查了 {len(sudo_configs)} 条sudo规则",
                f"发现 {len(exploitable_rules)} 条可利用规则",
                "生成利用命令"
            ],
            recommendations=[
                "优先利用NOPASSWD规则",
                "使用文件读取方法获取敏感信息",
                "避免直接执行shell以降低检测风险"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def test_kernel_exploitation(self) -> PrivilegeEscalationTest:
        """测试内核漏洞利用"""
        print("🔍 测试内核漏洞利用场景...")
        
        # 模拟内核版本检查
        kernel_vulns = [
            {"cve": "CVE-2021-4034", "name": "PwnKit", "success_rate": 0.95, "stealth": 0.3},
            {"cve": "CVE-2022-0847", "name": "Dirty Pipe", "success_rate": 0.90, "stealth": 0.4},
            {"cve": "CVE-2021-3156", "name": "Baron Samedit", "success_rate": 0.85, "stealth": 0.5},
            {"cve": "CVE-2020-14386", "name": "AF_PACKET", "success_rate": 0.80, "stealth": 0.6}
        ]
        
        # 选择最佳漏洞
        best_vuln = max(kernel_vulns, key=lambda x: x["success_rate"] * x["stealth"])
        
        # 模拟漏洞利用
        exploitation_success = random.random() < best_vuln["success_rate"]
        
        if exploitation_success:
            print(f"  ✅ 成功利用 {best_vuln['name']} ({best_vuln['cve']})")
        else:
            print(f"  ❌ 利用失败 {best_vuln['name']} ({best_vuln['cve']})")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_kernel_001",
            test_name="内核漏洞利用测试",
            method="kernel_exploitation",
            success_rate=best_vuln["success_rate"],
            stealth_rating=best_vuln["stealth"],
            risk_level="critical",
            detection_probability=0.7,
            execution_time=random.uniform(5.0, 15.0),
            artifacts=[
                f"检测到 {len(kernel_vulns)} 个潜在内核漏洞",
                f"选择利用 {best_vuln['name']}",
                "编译利用代码" if exploitation_success else "利用失败"
            ],
            recommendations=[
                "内核漏洞利用风险高，容易被检测",
                "建议优先使用其他权限提升方法",
                "如必须使用，请在测试环境中验证"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def test_service_hijacking(self) -> PrivilegeEscalationTest:
        """测试服务劫持"""
        print("🔍 测试服务劫持场景...")
        
        # 模拟服务检查
        services = [
            {"name": "custom-service", "writable": True, "running": True, "user": "root"},
            {"name": "backup-script", "writable": True, "running": False, "user": "root"},
            {"name": "log-rotator", "writable": False, "running": True, "user": "root"},
            {"name": "update-checker", "writable": True, "running": True, "user": "user"}
        ]
        
        hijackable_services = [s for s in services if s["writable"] and s["user"] == "root"]
        success_rate = len(hijackable_services) / len(services) if services else 0
        
        # 模拟劫持过程
        hijacking_results = []
        for service in hijackable_services:
            result = {
                "service": service["name"],
                "method": "script_replacement",
                "success": True,
                "stealth": random.uniform(0.7, 0.9),
                "persistence": service["running"]
            }
            hijacking_results.append(result)
            print(f"  ✅ 劫持服务: {service['name']} (运行中: {service['running']})")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_service_001",
            test_name="服务劫持测试",
            method="service_hijacking",
            success_rate=success_rate,
            stealth_rating=0.85,
            risk_level="medium",
            detection_probability=0.25,
            execution_time=random.uniform(3.0, 8.0),
            artifacts=[
                f"检查了 {len(services)} 个系统服务",
                f"发现 {len(hijackable_services)} 个可劫持服务",
                "创建恶意服务脚本"
            ],
            recommendations=[
                "优先劫持不常用的自定义服务",
                "保留原始服务功能以避免异常",
                "使用定时触发而非持续运行"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def test_environment_hijacking(self) -> PrivilegeEscalationTest:
        """测试环境变量劫持"""
        print("🔍 测试环境变量劫持场景...")
        
        # 模拟环境变量检查
        env_vectors = [
            {"var": "PATH", "hijackable": True, "impact": "high", "method": "path_injection"},
            {"var": "LD_PRELOAD", "hijackable": True, "impact": "critical", "method": "library_injection"},
            {"var": "LD_LIBRARY_PATH", "hijackable": True, "impact": "high", "method": "library_path"},
            {"var": "PYTHONPATH", "hijackable": True, "impact": "medium", "method": "module_injection"}
        ]
        
        hijackable_vars = [var for var in env_vectors if var["hijackable"]]
        success_rate = len(hijackable_vars) / len(env_vectors)
        
        # 模拟劫持测试
        hijacking_results = []
        for var in hijackable_vars[:2]:  # 测试前2个
            result = {
                "variable": var["var"],
                "method": var["method"],
                "impact": var["impact"],
                "success": True,
                "stealth": random.uniform(0.8, 0.95)
            }
            hijacking_results.append(result)
            print(f"  ✅ 劫持变量: {var['var']} (影响: {var['impact']})")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_env_001",
            test_name="环境变量劫持测试",
            method="environment_hijacking",
            success_rate=success_rate,
            stealth_rating=0.90,
            risk_level="high",
            detection_probability=0.15,
            execution_time=random.uniform(1.0, 4.0),
            artifacts=[
                f"检查了 {len(env_vectors)} 个环境变量",
                f"发现 {len(hijackable_vars)} 个可劫持变量",
                "创建恶意库文件"
            ],
            recommendations=[
                "LD_PRELOAD劫持效果最佳但风险较高",
                "PATH劫持相对安全且隐蔽",
                "劫持后及时清理环境变量"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def test_cron_hijacking(self) -> PrivilegeEscalationTest:
        """测试定时任务劫持"""
        print("🔍 测试定时任务劫持场景...")
        
        # 模拟cron任务检查
        cron_jobs = [
            {"user": "root", "command": "/usr/local/bin/backup.sh", "writable": True, "frequency": "daily"},
            {"user": "root", "command": "/opt/scripts/cleanup.py", "writable": True, "frequency": "hourly"},
            {"user": "root", "command": "/bin/systemctl restart nginx", "writable": False, "frequency": "weekly"},
            {"user": "user", "command": "/home/user/scripts/update.sh", "writable": True, "frequency": "daily"}
        ]
        
        hijackable_jobs = [job for job in cron_jobs if job["writable"] and job["user"] == "root"]
        success_rate = len(hijackable_jobs) / len(cron_jobs) if cron_jobs else 0
        
        # 模拟劫持过程
        hijacking_results = []
        for job in hijackable_jobs:
            result = {
                "command": job["command"],
                "frequency": job["frequency"],
                "method": "script_modification",
                "success": True,
                "stealth": random.uniform(0.85, 0.95)
            }
            hijacking_results.append(result)
            print(f"  ✅ 劫持任务: {job['command']} (频率: {job['frequency']})")
        
        test_result = PrivilegeEscalationTest(
            test_id="priv_esc_cron_001",
            test_name="定时任务劫持测试",
            method="cron_hijacking",
            success_rate=success_rate,
            stealth_rating=0.92,
            risk_level="medium",
            detection_probability=0.10,
            execution_time=random.uniform(2.0, 6.0),
            artifacts=[
                f"检查了 {len(cron_jobs)} 个定时任务",
                f"发现 {len(hijackable_jobs)} 个可劫持任务",
                "修改定时任务脚本"
            ],
            recommendations=[
                "优先劫持执行频率低的任务",
                "在原脚本中插入恶意代码而非替换",
                "使用条件触发避免频繁执行"
            ]
        )
        
        self.test_results.append(test_result)
        return test_result
    
    def _generate_sudo_exploit_command(self, method: str) -> str:
        """生成sudo利用命令"""
        commands = {
            "file_read": "sudo cat /etc/shadow",
            "shell_escape": "sudo vim -c ':!/bin/sh'",
            "file_overwrite": "sudo cp /tmp/malicious /etc/passwd",
            "code_execution": "sudo python -c 'import os; os.system(\"/bin/sh\")'"
        }
        return commands.get(method, "sudo -l")
    
    def run_all_tests(self) -> List[PrivilegeEscalationTest]:
        """运行所有权限提升测试"""
        print("🚀 开始权限提升场景测试...")
        print("=" * 60)
        
        # 运行各种测试
        self.test_suid_exploitation()
        self.test_sudo_misconfiguration()
        self.test_kernel_exploitation()
        self.test_service_hijacking()
        self.test_environment_hijacking()
        self.test_cron_hijacking()
        
        # 计算总体统计
        total_tests = len(self.test_results)
        avg_success_rate = sum(test.success_rate for test in self.test_results) / total_tests
        avg_stealth_rating = sum(test.stealth_rating for test in self.test_results) / total_tests
        
        print("\n" + "=" * 60)
        print("📊 权限提升测试总结:")
        print(f"  总测试数: {total_tests}")
        print(f"  平均成功率: {avg_success_rate:.1%}")
        print(f"  平均隐蔽性: {avg_stealth_rating:.1%}")
        
        # 推荐最佳方法
        best_method = max(self.test_results, key=lambda x: x.success_rate * x.stealth_rating)
        print(f"  推荐方法: {best_method.test_name}")
        
        return self.test_results
    
    def generate_report(self) -> str:
        """生成权限提升测试报告"""
        report_content = f"""# 权限提升场景测试报告

**目标服务器**: {self.target_host}
**测试时间**: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}
**测试数量**: {len(self.test_results)}

## 测试结果摘要

"""
        
        for test in self.test_results:
            report_content += f"""### {test.test_name}
- **测试ID**: {test.test_id}
- **方法**: {test.method}
- **成功率**: {test.success_rate:.1%}
- **隐蔽性**: {test.stealth_rating:.1%}
- **风险等级**: {test.risk_level}
- **检测概率**: {test.detection_probability:.1%}
- **执行时间**: {test.execution_time:.2f}s

**发现的问题**:
{chr(10).join(f'- {artifact}' for artifact in test.artifacts)}

**建议**:
{chr(10).join(f'- {rec}' for rec in test.recommendations)}

---

"""
        
        return report_content

def main():
    """主函数"""
    print("🔐 权限提升场景测试系统")
    print("=" * 40)
    
    # 创建测试器
    tester = PrivilegeEscalationScenarios()
    
    # 运行所有测试
    results = tester.run_all_tests()
    
    # 生成报告
    report = tester.generate_report()
    
    # 保存报告
    report_file = f"privilege_escalation_report_{datetime.now().strftime('%Y%m%d_%H%M%S')}.md"
    with open(report_file, 'w', encoding='utf-8') as f:
        f.write(report)
    
    print(f"\n📋 报告已保存: {report_file}")

if __name__ == "__main__":
    main()